1022231211540 has 288 divisors, whose sum is σ = 3636069865344. Its totient is φ = 212187709440.

The previous prime is 1022231211511. The next prime is 1022231211553. The reversal of 1022231211540 is 451121322201.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1022231211540.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 31580004 + ... + 31612356.

It is an arithmetic number, because the mean of its divisors is an integer number (12625242588).

Almost surely, 2^{1022231211540} is an apocalyptic number.

1022231211540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1022231211540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1818034932672).

1022231211540 is an abundant number, since it is smaller than the sum of its proper divisors (2613838653804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1022231211540 is a wasteful number, since it uses less digits than its factorization.

1022231211540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33367 (or 33358 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 1022231211540 its reverse (451121322201), we get a palindrome (1473352533741).

The spelling of 1022231211540 in words is "one trillion, twenty-two billion, two hundred thirty-one million, two hundred eleven thousand, five hundred forty".